Links[1] https://www.bookweb.org/downloads/wi8 [2] https://www.bookweb.org/downloads/merch-sales-marketing [3] https://www.bookweb.org/system/files/diy/Saturn%20Booksellers%20and%20the%20Coffee%20Cabin.pdf [4] https://www.bookweb.org/system/files/diy/MarketingThatMovesTheNeedle.pdf